Currently I have a problem of International Large Envelope/Flat mail service.
Usually the International Large Envelope/Flat labels have tracking numbers start with LK.
eg, LK310043012US. printed on 01/24/2017.
It is trackable on USPS.
https://tools.usps.com/go/TrackConfi...=LK310043012US
However, since Feb 2017, all the International Large Envelope/Flat mails have custom numbers start with UC.
eg,
USPS Intl First Class, Tracking number: UC000125345US
USPS Intl First Class, Tracking number: UC000126173US
Printed on Feb 17, 2017.
They are not trackable, and there is no update on USPS.com.
Many buyers thought I haven't shipped their orders, and filed complaints.
How can I print International Large Envelope/Flat labels with trackable numbers?
Many thanks for your help!
Usually the International Large Envelope/Flat labels have tracking numbers start with LK.
eg, LK310043012US. printed on 01/24/2017.
It is trackable on USPS.
https://tools.usps.com/go/TrackConfi...=LK310043012US
However, since Feb 2017, all the International Large Envelope/Flat mails have custom numbers start with UC.
eg,
USPS Intl First Class, Tracking number: UC000125345US
USPS Intl First Class, Tracking number: UC000126173US
Printed on Feb 17, 2017.
They are not trackable, and there is no update on USPS.com.
Many buyers thought I haven't shipped their orders, and filed complaints.
How can I print International Large Envelope/Flat labels with trackable numbers?
Many thanks for your help!